Door-machine



' 4 Sheets--Sheet 1. E. B. HAYES. DOOR MACHINE.

(No Model.)

No. 497,979. Patented May 23, 1893.

.Zzvenim? ANN 52 k (No ModeL) 4 Sheets-Sheet 2.

E. B. HAYES.

DOORMAGHINB. 7

No. 497,979. Patented May 23, 1893.

1 I l l I ml ycnms Firms :0. WOTD'UTHD" WASNINGYON. n. c,

4 SheetsSheet 3. .E. B. -HAYES. DOOR MAOHINE.

(No Model.)

' No. 497,979. Patented May 23, 1893.

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UNITED STATES PATENT OFFICE.

ELI B. HAYES, OF OSHKOSH, \VISOONSIN.

DOOR-MACHINE.

SPECIFICATION forming part of Letters Patent No. 497,979, dated May 23,1893. Application filed May 23, 1892. Serial No- 434,11'7. (No model.)

To all whom it may concern.-

Be it known that I, ELI l3. HAYES, a citizen of the United States,residing at Oshkosh, in the county of WVinnebago, State of \Visconsin,have invented certain new and useful Improvements in Door-Machines; andI do declare the following to be a full, clear, and exact description ofthe invention, such as will enable others skilled in the art to which itappertains to make and use the same.

My improvements are especially directed to the production of a machineby which the parts of a door frame, stiles, rails, and muntins, may berapidly and perfectly manufactured. In this machine I attain thefollowing valuable results, among othersz-The lumber is straightened orhas the vertical wind taken out of it as it enters the machine andbefore it is confined and forced against the bed by the planer feedrolls; the lumber is planed and the molding or moldings (at one or bothedges) is or are stuck on both sides and these moldings formedaccurately opposite to each other notwithstanding bends in the edge ofthe lumber; the receiving shoe for the upper planer and molder headconstitutes the opposing and upper planer bed for the lower planer andmolder head, said heads or cutters being placed the one nearly directlyover the other; the upper bed and cutting head or cylinder are adjustedtogether for different thicknesses of lumber; the lumber is at the sametime grooved and finished on the edges, and, in some instances, stuck ormolded on the edge as Well as on the top and bottom; the lumber issanded on both sides, and the sand rolls or drums permitted to be takenout of engagement with the lumber when the feed is stopped with a pieceof work in the machine, thus avoiding the cutting of the sand drums intothe work while the latter is stationary and the drums gradually comingto a stop.

With such objects in view my invention consists in the parts andcombinations thereof hereinafter set forth and claimed.

In order to make the invention more clearly understood 1 have shown inthe accompanying drawings means for carrying the same into elfect,without, however,intending to limit my improvements, in their practicalapplications, to the particular construction which, for the sake ofillustration, I have delineated.

In said drawings: Figure 1 is a side elevation of a planing and moldingmachine embodying my improvements. Fig. 2 is a plan view of the same,excepting a portion of the sand drum adjusting devices. Fig. 3 is anelevation from the opposite side of the machine showing the gearingwhich operates the feed rolls and reciprocates the sanding drums. Figs.4, 5, 6 and 7 are end views respectively of a muntin, a top rail orstile, a lock rail, and a bottom rail, of the character which Icanproduce by my improved machine. Fig. 8 is a longitudinal verticalsection on line X-X, Fig. 2.

It is primarily the design of my present invention to produce certain ofthe parts (the rails and muntins) of a flush or sunk molded door inwhich the moldings are formed integrally with said parts. In order toproduce such frame pieces the moldings must be stuck from the sideinstead of from the edge and must be caused to register accurately witheach other-that is to say, the base of the molding on one side of theframe piece must be exactly opposite to the base of the molding on theother sidein order that when the frame pieces are mitered for thepurpose of being joined together, and portions of the moldingscontiguous to the mitered cuts removed, the joints on both sides of thedoor may be perfect. I shall therefore describe my improved machine asespecially adapted for this work, but I desire it to be understood thatvarious parts of my improvements may be availed of for other purposes.

Referring to the drawings, 1 indicates the main frame of the machine ofwhich 2 is the main work table or bed above and below which are mountedthe feed rolls 33 and 4-4 in the usual manner, the upper rollspreferably upon swinging frames or gates 5-5, as indicated.

6 indicates the power shaft mounted at one end of the machine invertically adjustable yoke bearings 7, the lower ends of which fit invertical bearings 8 formed on the frame, in which they are adjustableand may be clamped by set screws 9.

10, 11, indicate the tight and loose driving belt pulleys on the mainshaft.

12 is a small driving pulley on the shaft 6 and connected by a loosebelt 13 with a pulley 14 which latter is mounted upon transverse shaft15 carrying at its other end a bevel gear 16 meshing with acorresponding gear 17. The latter is mounted upon the longitudinal feedshaft 18 which is provided with worms 19. These latter mesh with wormwheels 20 'on the ends of the lower feed roll shafts 21.

From these latter shafts motion is communicated to the upper feed rollsby gearing in a well known manner.

22 is a belt tightener pulley mounted in line with the belt 13 upon anarm 23. The latter is supported by a controlling lever 24 fulcrumed uponthe main frame at 25. By oscillating this lever the tightener pulle Ymay be forced against or removed from the loose belt 13 with theresult'of causing the feed gearing to operate or remain stationary.

26 is the shaft of the upper planing and molding cutter head mounted inbearings 27 which slide and are adjustable up and down upon brackets 28secured to the main frame. This vertical adjustment is effected by theoperation of a crank arm 29 which operates upon miter gears and screwsconnected with the bearings 27 in a well known manner.

30 is a frame or pair of brackets rigidly secured to or formed with thebearings 27, in which brackets is mounted a vertically adjustable rigidbed 31. The rear end 32 of this bed forms a shoe which is situated inclose proximity to and behind the upper on tter head 33. Said bed andshoe are vertically adjustable by screws 34, miter gearing 35 connectedwith the upper ends of the screws, and a crank shaft 36 by which thesaid miter gearing is operated.

Immediately beneath the bed 31 and in close proximity to the cutter head33 is mounted the lower cutting and molding head 37. By thus mountingthe lower head, in immediate proximity to the head carrying the uppermolding cutters, I have insured that the molding or moldings upon thebottom side of the rail or muntin shall be stuck exactly opposite to themolding or moldings upon the top surface, notwithstanding the horizontalcurvature or bend which often ocours in the lumber being operated upon,and which would throw the bottom molding out of line with the upper ifthe lower molding cutters were situated at a distance from the uppermolding cutters.

The bearings 38 for the lower cutter head are supported by wedges 17which are m'ovable transversely of the machine, by means of a screw 39so as to give a slight vertical adjustment to the lower cutter. The saidbearings are held in place by hinge bolts 40,

(Fig. 1), by releasing which the lower cylinder may be drawn outlaterally for changing or sharpening the cutters. The upper cutter shaft26 is provided with pulleys 41 which are driven by belts 42 passing frompulleys 43 on the main power shaft over pulleys 44 mounted on the endsof a transverse shaft 45, thus not only driving the upper planer butimparting motion to the said shaft 45.

The shaft 46 of the lower planer and molder is provided with a beltpulley 47 from which it may be connected with a driving pulley 48 on themain shaft by a crossed belt 49 (Fig. 3).

' 50 indicates the vertical cutter heads adapted to finish and groovethe edges of the stiles, rails and muntins, and in some instances toco-operate with the top and bottom molding cutters in forming anelaborate molding thereon, which heads are carried upon the upper endsof vertical spindles 51 mounted and actuated in any suitable or wellknown manner. The bearings 51 of one of the spindles 51 are laterallyadjustable upon the main frame to accommodate different widths of lumbersliding on transverse bars 51 51 (Fig. 8).

The lumber, as it is fed to the machine between the feed rolls often hasa vertical curve, bend, or wind and to produce finished work it isnecessary not only to plane the surfaces of such piecesbut to removemore of the surface at some points than at others. To this end I mountin suitable verticallyadjustable bearings 52, which may receive suchadjustment from wedges 53 and a transverse operating screw 54, atransverse shaft 55 carrying a jointing or planing head 56. This latteris situated beneath the work table 2 andjust in advance of the feedrolls. In advance of this cutter head I mount an independent work table57 which can readily receive such amount of vertical adjustment as isnecessary to take the bend or wind out of the lumber. This adjustment Ipreferably effect by means of longitudinally movable wedges 58 engagingcorresponding inclines or wedges 59 on the under side of the table 57and engaged and movable by a screw-shaft 60. Just behind the cutter head56, so that it will not engage the lumber until it has been operatedupon by said head, I mount a supplemental upper feed roll 61 which iscarried by a hinged frame 62. This latter can oscillate upon the shaft 3of one of the upper feed rolls 3 as a center, and is verticallyadjustable to bring the roll 61 nearer to or farther from the table 2 bymeans of a vertical screw 63 which engages the frame 62 and the mainframe of the machine. Connected with this supplemental feed roll is agear wheel 65 which is operated by an idler 66 from the upper feed rollgearing.

I will now describe the sanding devices by which the door frame piecesare finished as they leave the machine.

The lower sand cylinderordrum isindicated at 67, the shaft 68 of whichis mounted in IIO and are mounted upon and operatedby a transverse shaft71. The latter may be turned to give the slight needed adjustment to thebearings of the lower sand drum by a crank arm 7 2 and a screw 73 whichengages the latter. The bearings 69 are clamped in place by hinge bolts74 which are mounted upon vertical pivots 75, the latter fitting in ears76 formed upon the main frame. The slight vertical adjustment abovereferred to is permitted by the distance between the ears 76, which isgreater than the vertical dimension of the hinge bolt 74.

77 is a receiving shoe or plate situated in rear of and in closeproximity to the lower sand drum. This shoe is supported upon springs78, which may be of rubber. These springs are mounted in sockets 79formed in extensions of the bearings 69 and tend constantly to lift thelumber out of contact with the lower sand drum. The tension of saidsprings can be increased or diminished by vertical screws 80 which passinto said sockets from below. The upper sand cylinder is indicated at81. Its shaft 82 is mounted in vertically adjustable bearings 83 whichare engaged and operated by screws 84, miter gears 85 and a transversecrank shaft 86, in a well known manner, the mechanism of which I do notclaim and are guided in their movements by a frame 87. The latter isconnected by hinge bolts 88 with ears 89 formed upon frames 90. Thelatter are mounted upon transverse pivots 91 and it will be observedthat by an upward oscillation of the frames the upper sand cylinder maybe lifted clear of the work. Such upward movement may be imparted bycams or eccentrics 92 which are mounted on a transverse shaft 93 andengage the under sides of the frames 90. The shaft 93 is provided with acrank arm 94' connected by toggle links 95 with afixed fulcrum or pivot96. The toggle pivot 97 which joins said links is connected by alongitudinal rod 98 with the lower arm of the feed-controlling lever 24.The normal position of the eccentrics is indicated in full lines and theposition which they occupy when the upper sand cylinder is disengagedfrom the work, by dotted lines. It will be seen that they are moved intothis last position whenever the feed controlling lever is thrown forwardand the tightener pulley 22 removed from the loose belt 13.

99 is an upper bed plate carried by the frame pieces 90 and situatedabove the lower sanding drum. When said frame pieces and the upper sanddrum are in their lowermost or normal positions the downward pressure ofthe plate 99 upon the top of the work overcomes the springs 78,depressing the shoe 77 and bringing the work into engagement with thelower sand drum. When, however, the

upper sand cylinder is thrown out of operation, as already described,the

shoe 77, under the pressure of the springs 78, automatically lifts thework from the lower sand drum. I have thus insured that should the feedof the machine be stopped by lever 24 for any purpose while the machinecontains a piece of work, the sanding drums will be disengaged therefromand the work preserved. Without this provision the rotation of the sanddrums, which would continue some little time after the feed was stopped,would cut into the surface of the work upon both the upper and lowersides and make it useless.

I derive the reciprocating movement of the sand drums from the wormshaft 18 by means of bevel gears 100,101, carried thereby. The formerengages a bevel gear 102 fixed on the lower end of a vertical shaft 103,which carries on its upper end a small eccentric 104 connected by a link105 with a loose collar 106 upon the shaft 82 of the upper sand drum.The wheel 101 meshes with a corresponding gear wheel 107 mounted upon ashaft 108. The latter carries at its upper end an eccentric 109 which isconnected byalink 110 with a loose collar 111 on the shaft 68 of thelower sand drum.

The upper sand drum is driven by acrossed belt 112 which passes around apulley 113 upon the shaft of the drum and around one of the pulleys 4:4.The other pulley 14 is connected by a straight belt 114: with a pulley115 on the shaft of the lower sand drum.

What I claim is 1. The combination with a lower planing and moldingcutter head, of an upper molding and planing head situated in proximitythereto, a rigid frame attached to and adjusted with the carrying frameof the upper cutter, and a rigid bed situated over the bottom cutter andadjustable in said rigid frame substantially as set forth.

2. The combination with the cutters and the feed mechanism therefor, ofa sanding drum situated on the line of the feed of the work and adaptedto operate upon the latter, and mechanism for disengaging said drum fromthe work upon the stoppage of the feed, substantially as set forth.

3. The combination with the cutters and the feed mechanism therefor, ofa sanding drum situated on the line of the feed of the work and adaptedto operate upon the latter, mechanism for disengaging said drum from thework, means for controlling the feed mechanism, and a connection betweensaid controlling means and the drum disengaging mechanism, substantiallyas set forth.

4. The combination with the upper and lower sand drums of aspring-actuated support adapted to separate the work from one of saiddrums, an opposing plate for holding the work against said drum, andmeans for moving said plate and the other sand drum away from the work,substantially as set forth.

5. The combination with the cutters, and the feed mechanism, of sandingdrums situated on opposite sides of the line of the feed of the work andadapted to operate upon the latter, mechanism for disengaging one ofsaid drums from the work, and means for simultaneously disengaging thework from the other drum, substantially as set forth.

. 6. The combination with the cutters, the feed rolls,- and a worm feedfor the latter comprising a longitudinal shaft, of the upper and lowersand drums, vertical shafts geared with said longitudinal shaft, andcarryingcanis or eccentrics and connections between said eccentrics andthe bearings of the sand drums, substantially as set forth. 7

7. The combination with the cutters, the

ELI B. HAYES. Vitnesses: F; J :BENJAMIN, H. N. Low.

